Traffic Sign Life Expectancy

The goal of this project is to investigate the retro-reflectivity service life of signage in the field to determine what the expected sign life values for different categories/types of signage are and how these compare to "recommended" manufacturer values. Project teams will complete tasks that document past in-service sign retro-reflectivity research, identify the Iowa counties that have historically collected field retro reflectivity data as part of their sign assessment program, obtain that historical data from counties, determine the statistical approach for analyzing that data, conduct the data analysis and comparisons, and develop conclusions and recommendations based on the analysis.

  • Supplemental Notes:
    • Contract to a Performing Organization has not yet been awarded.


  • English


  • Status: Active
  • Contract Numbers:

    Addendum 588

  • Sponsor Organizations:

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010
  • Project Managers:

    Crouch, Tim

  • Principal Investigators:

    Veneziano, Dave

  • Start Date: 20160901
  • Expected Completion Date: 20190228
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01645241
  • Record Type: Research project
  • Source Agency: Iowa Department of Transportation
  • Contract Numbers: Addendum 588
  • Files: RiP, STATEDOT
  • Created Date: Aug 30 2017 2:47PM